Top positive review
17 people found this helpful
Battery basically seems fine
on May 14, 2014
This is a sealed, lead acid battery. It is being used in a home security system to replace an identical sized battery that failed after 8 years. Upon arrival this battery displayed 12.4 Volts, The security system has a 13.75 Volt charger.
Lead acid batteries charge best with limited current with cutoff of charging at it's nominal Voltage of 13.8V.
To bring the battery up to full charge of 13.75 Volts before installing in the system, I chose to limit current to 100 mA at 13.7 Volts because only 1.3 Watts of power would be generated inside the battery - not much heat, and charge it overnight.
I did measure my security system charge current and found it self limited to 50 mA with cutoff at 13.75 V.. All good so far and if this battery fails within the next few years I will return and modify this post.
Prior to buying this battery I read many posts about failures in FIOS applications and other uses for this battery with their failure reports. I don't know the FIOS power cycle but know if a lead acid battery is consistently discharged below about 11 volts (or even once totally discharged) or charged with currents above recommended ratings it is probably going to fail early. It might just be FIOS applications are requiring deep cycle type batteries that have different cycle requirements?
Update: Early report - Battery is still working fine at 13.77V today (9/13/2014) in the security system. Had one house power outtage (15 minutes) from lightning storm few weeks ago but the security system worked fine.